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US5152275A - Stone splitter - Google Patents

Stone splitter Download PDF

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Publication number
US5152275A
US5152275A US07/644,544 US64454491A US5152275A US 5152275 A US5152275 A US 5152275A US 64454491 A US64454491 A US 64454491A US 5152275 A US5152275 A US 5152275A
Authority
US
United States
Prior art keywords
cutters
blade
eccentric
supported
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/644,544
Inventor
Jan J. Landhuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Almi Machinefabriek BV
Original Assignee
Almi Machinefabriek BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Almi Machinefabriek BV filed Critical Almi Machinefabriek BV
Assigned to ALMI MACHINEFABRIEK B.V. reassignment ALMI MACHINEFABRIEK B.V. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LANDHUIS, JAN J.
Application granted granted Critical
Publication of US5152275A publication Critical patent/US5152275A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/222—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising by pressing, e.g. presses
    • B28D1/223—Hand-held or hand-operated tools for shearing or cleaving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/58—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism a single sliding pair

Definitions

  • the invention relates to a stone splitter according to the preamble of the main claim.
  • Such an arrangement means that essentially equal pressure is produced in both axial end regions of the cutters upon operation of the hand lever, which is very important in particular when individual cutters, rather than continuous cutters, are used.
  • This stone splitter does, however, have the disadvantage that a multiplicity of pivot bearing points is present, which points tend to show wear in the course of the rough operation of a stone splitter, in particular due to the fact that, during the tension release arising immediately after the cut, a shock is carried into all articulated parts.
  • the object of the invention is to improve the drive of a stone splitter, in order thereby to increase the service life of the stone splitter.
  • an eccentric drive comprising two eccentric wheels which are connected to each other for drive purposes by means of a toothed rack.
  • the lever device in this case engages with the one eccentric wheel, the eccentric wheel being equipped with external toothing.
  • the toothed rack is now carried along by means of the external toothing, and the external toothing of the second eccentric drive is set in rotation by means of the toothed rack. This, therefore, also produces a pressure force downwards on the blade holders in the region of this second eccentric drive not driven directly by means of the lever device.
  • the toothed rack in this case advantageously rests inside the upward and downward movable blade holder on a supporting plate, with the interposition of suitable plain bearings, which can be made of, for example, plastic, or can also be in the form of roller bearings.
  • the cutters are advantageously in the form of individual cutters as known per se, and these individual cutters rest in a manner known per se on the blade holder with the interposition of rubber pads.
  • FIG. 1 a cut-away side view of a stone splitter according to the invention
  • FIG. 2 a section through the stone splitter according to FIG. 1.
  • the stone splitter shown in the drawings has a frame 1, which can be equipped with a foot support 27 and a pair of wheels 28.
  • the frame 1 bears a blade holder 2 with individual cutters 3, which are fixed on the blade holder 2 by means of fixing devices 4. These individual cutters 3 act as countercutters.
  • An upper blade holder 5 bears individual cutters 6.
  • the two individual cutters 3 and 6 can be moved towards each other in a common plane through the blade holder 5 being moved downwards, in which case it is also possible to adjust the blade holder 5 in height.
  • the adjustment of the blade holder 5 in height is carried out by adjusting devices 7 and 8 which bear a carrier 9, bearing the actual blade holders 5 in such a way that they can be moved up and down.
  • the movement of the blade holder 5 is achieved by means of an eccentric drive 10, which can be operated by means of a lever device 14.
  • a work table 24 formed by a bearing plate is disposed at approximately the height of the cutting face of the interacting individual cutters 3 and 6, and during use bears the stone material to be split.
  • the bearing plate is in this case flexibly supported, as indicated by the spring bearing 25, 26.
  • FIG. 2 shows a shaft 30, to which the lever device 14, which can be seen in FIG. 1, connects in a forked manner.
  • An eccentric wheel 35 is non-rotationally supported on the shaft 30 through a suitable keyed joint 31 being provided between the two components.
  • the axis of rotation of the shaft 30 is shown at A in FIG. 1, while the axis of rotation of the eccentric wheel 35 is shown by B in FIG. 1.
  • the outside of the eccentric wheel 35 has an external toothed ring 37, and it can be seen from the illustration in FIG. 1 in conjunction with the illustration in FIG. 2 that when the shaft 30 is rotated by means of the lever device 14 the eccentric wheel 35 also carries out a corresponding rotary movement, but in this case rotates eccentrically about the axis of rotation A, so that a downward pressure can thereby be produced.
  • This downward pressure acts by means of a toothed rack 32 on a supporting plate 39, which is disposed in a fixed manner in the blade holder 5, so that the actual individual cutters 6 can thereby be moved downwards.
  • the pressure transmission in this case takes place with the interposition of rubber pads 15.
  • the eccentric drive 10 connected to the lever device 14 is disposed off-center inside the actual stone splitter, and in fact off-center viewed in the direction of the axis of the cutters, and provision is made for a second eccentric drive 34, which also comprises an eccentric wheel 36 having an external toothed ring 38.
  • This external toothed ring 38 meshes with the toothed rack 32, and it can be seen from this that when the eccentric wheel 35 carries out a rotary movement the eccentric wheel 36 of the eccentric drive 34 is forced by means of the toothed rack 32 also to carry out a rotary movement.
  • both the turned wheels 35 and 36 are eccentric wheels, the toothed rack 32 is thus moved downwards also in the region of the eccentric drive 34, and this means that a uniform pressure is exerted on the individual cutters 6 over the entire length of the individual cutters 6.
  • the toothed rack 32 rests in this case on the supporting plate 39 with the interposition of plain bearings 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention relates to a stone breaker having a frame supporting the work-table, having a support which is height-adjustable via setting means at its outer ends and is supported by the frame, and having knife-type blades extending parallel to the support, of which blades the counter-blade is supported by the frame and the other, in contrast to the support, is movable towards the counter-blade by means of a lever device, two eccentric drives with eccentric wheels being actuated by the lever device, both eccentric wheels having an outer toothed wheel rim and both outer toothed wheel rims being connected to each other via a movable rack.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a stone splitter according to the preamble of the main claim.
2. Description of the Prior Art
A generic stone splitter is described in DE-28 15 744 C2 and has proved excellent in practice.
It is also known (as shown particularly clearly by DE-OS 22 54 989) to produce the power transmission to the cutter by means of two eccentrics disposed at the end regions of the cutter. A hand lever is connected non-rotationally to one eccentric, while the other eccentric is operatively connected to the hand lever by means of a rod coupled to the hand lever and to a further lever connected non-rotationally to the latter eccentric.
Such an arrangement means that essentially equal pressure is produced in both axial end regions of the cutters upon operation of the hand lever, which is very important in particular when individual cutters, rather than continuous cutters, are used.
This stone splitter does, however, have the disadvantage that a multiplicity of pivot bearing points is present, which points tend to show wear in the course of the rough operation of a stone splitter, in particular due to the fact that, during the tension release arising immediately after the cut, a shock is carried into all articulated parts.
SUMMARY OF THE INVENTION
The object of the invention is to improve the drive of a stone splitter, in order thereby to increase the service life of the stone splitter.
This object of the invention is achieved through the teaching of the main claim.
Advantageous embodiments are explained in the sub-claims.
In other words, it is proposed that an eccentric drive be used, comprising two eccentric wheels which are connected to each other for drive purposes by means of a toothed rack. The lever device in this case engages with the one eccentric wheel, the eccentric wheel being equipped with external toothing. Through the rotary movement of the eccentric wheel which has taken place, and during which the upward or downward movement of the blade-holder also takes place simultaneously, the toothed rack is now carried along by means of the external toothing, and the external toothing of the second eccentric drive is set in rotation by means of the toothed rack. This, therefore, also produces a pressure force downwards on the blade holders in the region of this second eccentric drive not driven directly by means of the lever device.
The toothed rack in this case advantageously rests inside the upward and downward movable blade holder on a supporting plate, with the interposition of suitable plain bearings, which can be made of, for example, plastic, or can also be in the form of roller bearings.
The cutters are advantageously in the form of individual cutters as known per se, and these individual cutters rest in a manner known per se on the blade holder with the interposition of rubber pads.
BRIEF DESCRIPTION OF THE DRAWINGS
An example of an embodiment of a stone splitter according to the invention is explained below with reference to the drawings. The drawings in this case show in:
FIG. 1 a cut-away side view of a stone splitter according to the invention, and in
FIG. 2 a section through the stone splitter according to FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The stone splitter shown in the drawings has a frame 1, which can be equipped with a foot support 27 and a pair of wheels 28. The frame 1 bears a blade holder 2 with individual cutters 3, which are fixed on the blade holder 2 by means of fixing devices 4. These individual cutters 3 act as countercutters.
An upper blade holder 5 bears individual cutters 6. The two individual cutters 3 and 6 can be moved towards each other in a common plane through the blade holder 5 being moved downwards, in which case it is also possible to adjust the blade holder 5 in height.
The adjustment of the blade holder 5 in height is carried out by adjusting devices 7 and 8 which bear a carrier 9, bearing the actual blade holders 5 in such a way that they can be moved up and down. The movement of the blade holder 5 is achieved by means of an eccentric drive 10, which can be operated by means of a lever device 14.
A work table 24 formed by a bearing plate is disposed at approximately the height of the cutting face of the interacting individual cutters 3 and 6, and during use bears the stone material to be split. The bearing plate is in this case flexibly supported, as indicated by the spring bearing 25, 26.
FIG. 2 shows a shaft 30, to which the lever device 14, which can be seen in FIG. 1, connects in a forked manner. An eccentric wheel 35 is non-rotationally supported on the shaft 30 through a suitable keyed joint 31 being provided between the two components. The axis of rotation of the shaft 30 is shown at A in FIG. 1, while the axis of rotation of the eccentric wheel 35 is shown by B in FIG. 1.
The outside of the eccentric wheel 35 has an external toothed ring 37, and it can be seen from the illustration in FIG. 1 in conjunction with the illustration in FIG. 2 that when the shaft 30 is rotated by means of the lever device 14 the eccentric wheel 35 also carries out a corresponding rotary movement, but in this case rotates eccentrically about the axis of rotation A, so that a downward pressure can thereby be produced.
This downward pressure acts by means of a toothed rack 32 on a supporting plate 39, which is disposed in a fixed manner in the blade holder 5, so that the actual individual cutters 6 can thereby be moved downwards. The pressure transmission in this case takes place with the interposition of rubber pads 15.
In the individual cutters 3 of the lower blade are the same way also supported in a fixed manner on the frame 1 by means of rubber pads 16.
It can be seen from the illustration in FIG. 1 that the eccentric drive 10 connected to the lever device 14 is disposed off-center inside the actual stone splitter, and in fact off-center viewed in the direction of the axis of the cutters, and provision is made for a second eccentric drive 34, which also comprises an eccentric wheel 36 having an external toothed ring 38. This external toothed ring 38 meshes with the toothed rack 32, and it can be seen from this that when the eccentric wheel 35 carries out a rotary movement the eccentric wheel 36 of the eccentric drive 34 is forced by means of the toothed rack 32 also to carry out a rotary movement.
Since both the turned wheels 35 and 36 are eccentric wheels, the toothed rack 32 is thus moved downwards also in the region of the eccentric drive 34, and this means that a uniform pressure is exerted on the individual cutters 6 over the entire length of the individual cutters 6.
The toothed rack 32 rests in this case on the supporting plate 39 with the interposition of plain bearings 33.

Claims (4)

I claim:
1. A stone splitter comprising:
a work table;
a frame bearing the work table;
a carrier having two ends;
adjusting devices supporting the table at its outside ends, in a vertically adjustable manner, from the frame;
blade-like cutters running parallel to the carrier;
a countercutter supported by the frame;
a lever device for moving the blade-like cutters opposite the carrier towards the countercutter; and
two eccentric drives with eccentric wheels, wherein at least one eccentric drive is operated by the lever device, both eccentric wheels having an external toothed ring, and both external toothed rings being connected to each other by means of a movable toothed rack.
2. The stone splitter as claimed in claim 1, further comprising a blade holder having supporting plate therein, wherein the toothed rack is disposed movably in the direction of the longitudinal axis of the cutters by means of plain bearings on the supporting plate.
3. The stone splitter as claimed in claim 1 or 2, wherein the blade-like cutters are formed by individual cutters which are supported on rubber pads.
4. The stone splitter as claimed in claim 2, wherein the blade-like cutters are formed by individual cutters which are supported on rubber pads.
US07/644,544 1990-02-17 1991-01-23 Stone splitter Expired - Fee Related US5152275A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005071 1990-02-17
DE4005071A DE4005071C1 (en) 1990-02-17 1990-02-17

Publications (1)

Publication Number Publication Date
US5152275A true US5152275A (en) 1992-10-06

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ID=6400422

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/644,544 Expired - Fee Related US5152275A (en) 1990-02-17 1991-01-23 Stone splitter

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Country Link
US (1) US5152275A (en)
EP (1) EP0443123B1 (en)
AT (1) ATE94114T1 (en)
CA (1) CA2035418C (en)
DE (2) DE4005071C1 (en)
ES (1) ES2045731T3 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6321740B1 (en) * 1999-06-11 2001-11-27 Anchor Wall Systems, Inc. Block splitter assembly
US6460534B1 (en) 1999-06-14 2002-10-08 Allcutters Machine And Welding Modular guillotine
US20030180099A1 (en) * 2002-03-20 2003-09-25 Scherer Ronald J. Block splitting assembly and method
US20040200468A1 (en) * 2003-04-10 2004-10-14 Scherer Ronald J. Block splitting assembly and method
US20050115555A1 (en) * 1999-06-11 2005-06-02 Anchor Wall Systems, Inc. Block splitting assembly and method
US6948489B1 (en) * 2000-05-05 2005-09-27 O'neal Roy G Stone cutter
US20060054154A1 (en) * 2004-09-13 2006-03-16 Scherer Ronald J Block splitting assembly and method
US20060062015A1 (en) * 2004-08-13 2006-03-23 Du-Hwan Chung Radiant pad for display device, backlight assembly and flat panel display device having the same
US20080092870A1 (en) * 2006-10-18 2008-04-24 Pavestone Company, L.P. Concrete block splitting and pitching apparatus and method
US20080096471A1 (en) * 2006-10-18 2008-04-24 Pavestone Company, L.P. Concrete block splitting and pitching apparatus and method
CN102133772A (en) * 2010-12-31 2011-07-27 周金生 Feeding structure for stone sawing machine
USD773693S1 (en) 2014-05-07 2016-12-06 Pavestone, LLC Front face of a retaining wall block
USD791346S1 (en) 2015-10-21 2017-07-04 Pavestone, LLC Interlocking paver
US9701046B2 (en) 2013-06-21 2017-07-11 Pavestone, LLC Method and apparatus for dry cast facing concrete deposition
US10046480B2 (en) 2013-11-18 2018-08-14 Pavestone, LLC Rock face splitting apparatus and method
US10583588B2 (en) 2013-06-21 2020-03-10 Pavestone, LLC Manufactured retaining wall block with improved false joint
USD1037491S1 (en) 2021-12-14 2024-07-30 Pavestone, LLC Wall block

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19842670C1 (en) * 1998-07-18 2000-01-05 Almi Maschf Vriezenveen Bv Stone splitter with a simplified operating system
EP0976513A1 (en) * 1998-07-18 2000-02-02 Almi Machinefabriek Vriezenveen B.V. Stone splitter with a pressurizer comprising a plastic sachet
NL1015224C2 (en) * 2000-05-17 2001-11-20 Almi Machf B V Hydraulic stone cutter.
AT516557A1 (en) * 2014-12-11 2016-06-15 Hochenbichler Eduard Breaking tool, especially for earthenware
DE102016100422A1 (en) * 2016-01-12 2017-07-13 Holger Schulz Method for processing refractory bricks

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR37925E (en) * 1930-01-30 1931-02-07 Concrete Pounding Machine
DE2254989A1 (en) * 1972-09-01 1974-03-07 Gert Ingvar Johansson CUTTING DEVICE FOR PANELS MADE OF CLEAVABLE MATERIAL SUCH AS BRICK OR SAND STONE, CONCRETE SLAB, MARBLE OR SIMILAR MATERIAL
GB1387935A (en) * 1972-10-30 1975-03-19 Johansson G I Cutting device for plates of cleavable material such as tiles of brick or gritstone slabs of concrete or the like
DE2815744A1 (en) * 1978-02-17 1979-08-23 Abbink & Landhuis Metaal Pavement slab splitting cutter with stabiliser - includes moving cutter guide screw for moving two sliding tubes w.r.t. each other (NL 21.8.79)
DE3446768A1 (en) * 1984-12-21 1986-07-03 Albert Koch DEVICE FOR DIVIDING STONE BODIES

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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DE139775C (en) *
DE98121C (en) *
FR1429688A (en) * 1965-03-31 1966-02-25 Improvement in machines for cutting hard materials
DE3044083C2 (en) * 1980-11-24 1990-05-10 Bobst S.A., Lausanne Punching devices for automatic punching machines for punching sheets of paper, cardboard and the like.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR37925E (en) * 1930-01-30 1931-02-07 Concrete Pounding Machine
DE2254989A1 (en) * 1972-09-01 1974-03-07 Gert Ingvar Johansson CUTTING DEVICE FOR PANELS MADE OF CLEAVABLE MATERIAL SUCH AS BRICK OR SAND STONE, CONCRETE SLAB, MARBLE OR SIMILAR MATERIAL
GB1387935A (en) * 1972-10-30 1975-03-19 Johansson G I Cutting device for plates of cleavable material such as tiles of brick or gritstone slabs of concrete or the like
DE2815744A1 (en) * 1978-02-17 1979-08-23 Abbink & Landhuis Metaal Pavement slab splitting cutter with stabiliser - includes moving cutter guide screw for moving two sliding tubes w.r.t. each other (NL 21.8.79)
DE3446768A1 (en) * 1984-12-21 1986-07-03 Albert Koch DEVICE FOR DIVIDING STONE BODIES

Cited By (49)

* Cited by examiner, † Cited by third party
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US7967001B2 (en) * 1999-06-11 2011-06-28 Anchor Wall Systems, Inc. Block splitting assembly and method
US7066167B2 (en) 1999-06-11 2006-06-27 Anchor Wall Systems, Inc. Block splitting assembly and method
US9573293B2 (en) * 1999-06-11 2017-02-21 Anchor Wall Systems, Inc. Block splitting assembly and method
US8327833B2 (en) 1999-06-11 2012-12-11 Anchor Wall Systems, Inc. Block splitting assembly and method
US8006683B2 (en) 1999-06-11 2011-08-30 Anchor Wall Systems, Inc. Block splitting assembly and method
US20110168152A1 (en) * 1999-06-11 2011-07-14 Anchor Wall Systems, Inc. Block splitting assembly and method
US20060169270A1 (en) * 1999-06-11 2006-08-03 Anchor Wall Systems, Inc. Block splitting assembly and method
US20050115555A1 (en) * 1999-06-11 2005-06-02 Anchor Wall Systems, Inc. Block splitting assembly and method
US6918715B2 (en) 1999-06-11 2005-07-19 Anchor Wall Systems, Inc. Block splitting assembly and method
US20110061640A1 (en) * 1999-06-11 2011-03-17 Anchor Wall Systems, Inc. Block splitting assembly and method
US6910474B1 (en) 1999-06-11 2005-06-28 Anchor Wall Systems, Inc. Block splitting assembly and method
US6321740B1 (en) * 1999-06-11 2001-11-27 Anchor Wall Systems, Inc. Block splitter assembly
US6460534B1 (en) 1999-06-14 2002-10-08 Allcutters Machine And Welding Modular guillotine
US6948489B1 (en) * 2000-05-05 2005-09-27 O'neal Roy G Stone cutter
US7870853B2 (en) 2002-03-20 2011-01-18 Anchor Wall Systems, Inc. Block splitting assembly and method
US20110083656A1 (en) * 2002-03-20 2011-04-14 Anchor Wall Systems, Inc. Block splitting assembly and method
US20040221545A1 (en) * 2002-03-20 2004-11-11 Scherer Ronald J. Block splitting assembly and method
US7004158B2 (en) * 2002-03-20 2006-02-28 Anchor Wall Systems, Inc. Block splitting assembly and method
US20050268901A1 (en) * 2002-03-20 2005-12-08 Anchor Wall Systems, Inc. Block splitting assembly and method
US8251053B2 (en) 2002-03-20 2012-08-28 Anchor Wall Systems, Inc. Block splitting assembly and method
US20030180099A1 (en) * 2002-03-20 2003-09-25 Scherer Ronald J. Block splitting assembly and method
US9102079B2 (en) 2002-03-20 2015-08-11 Anchor Wall Systems, Inc. Block splitting assembly and method
US7428900B2 (en) 2002-03-20 2008-09-30 Anchor Wall Systems, Inc. Block splitting assembly and method
US6874494B2 (en) * 2002-03-20 2005-04-05 Anchor Wall Systems, Inc. Block splitting assembly and method
US6964272B2 (en) 2002-03-20 2005-11-15 Anchor Wall Systems, Inc. Block splitting assembly and method
US20050145300A1 (en) * 2002-03-20 2005-07-07 Anchor Wall Systems, Inc. Block splitting assembly and method
US6886551B2 (en) 2003-04-10 2005-05-03 Anchor Wall Systems, Inc. Block splitting assembly and method
US20040200468A1 (en) * 2003-04-10 2004-10-14 Scherer Ronald J. Block splitting assembly and method
US20060062015A1 (en) * 2004-08-13 2006-03-23 Du-Hwan Chung Radiant pad for display device, backlight assembly and flat panel display device having the same
US20060054154A1 (en) * 2004-09-13 2006-03-16 Scherer Ronald J Block splitting assembly and method
US7146974B2 (en) 2004-09-13 2006-12-12 Anchor Wall Systems, Inc. Block splitting assembly and method
US8028688B2 (en) 2006-10-18 2011-10-04 Pavestone Company, Llc Concrete block splitting and pitching apparatus and method
US20080092870A1 (en) * 2006-10-18 2008-04-24 Pavestone Company, L.P. Concrete block splitting and pitching apparatus and method
US20100313868A1 (en) * 2006-10-18 2010-12-16 William Howard Karau Concrete block splitting and pitching apparatus and method
US20080096471A1 (en) * 2006-10-18 2008-04-24 Pavestone Company, L.P. Concrete block splitting and pitching apparatus and method
US8136516B2 (en) 2006-10-18 2012-03-20 Pavestone, LLC Concrete block splitting and pitching apparatus
CN102133772A (en) * 2010-12-31 2011-07-27 周金生 Feeding structure for stone sawing machine
CN102133772B (en) * 2010-12-31 2013-11-27 周金生 Feeding structure for stone sawing machine
US9701046B2 (en) 2013-06-21 2017-07-11 Pavestone, LLC Method and apparatus for dry cast facing concrete deposition
US10583588B2 (en) 2013-06-21 2020-03-10 Pavestone, LLC Manufactured retaining wall block with improved false joint
US10899049B2 (en) 2013-06-21 2021-01-26 Pavestone, LLC Adjustable locator retaining wall block and mold apparatus
US11034062B2 (en) 2013-06-21 2021-06-15 Pavestone, LLC Manufactured retaining wall block with improved false joint
US11554521B2 (en) 2013-06-21 2023-01-17 Pavestone, LLC Adjustable locator retaining wall block and mold apparatus
US11801622B2 (en) 2013-06-21 2023-10-31 Pavestone, LLC Manufactured retaining wall block with improved false joint
US10046480B2 (en) 2013-11-18 2018-08-14 Pavestone, LLC Rock face splitting apparatus and method
USD773693S1 (en) 2014-05-07 2016-12-06 Pavestone, LLC Front face of a retaining wall block
USD791346S1 (en) 2015-10-21 2017-07-04 Pavestone, LLC Interlocking paver
USD887024S1 (en) 2015-10-21 2020-06-09 Pavestone, LLC Interlocking paver
USD1037491S1 (en) 2021-12-14 2024-07-30 Pavestone, LLC Wall block

Also Published As

Publication number Publication date
EP0443123B1 (en) 1993-09-08
EP0443123A3 (en) 1992-03-25
CA2035418C (en) 1993-12-21
ES2045731T3 (en) 1994-01-16
ATE94114T1 (en) 1993-09-15
DE4005071C1 (en) 1991-08-22
EP0443123A2 (en) 1991-08-28
DE59002659D1 (en) 1993-10-14
CA2035418A1 (en) 1991-08-18

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